BRAKES 5 2 x r l LX I f Gm o n s0 4 f r F R r I A I1 A iI i I lx 4 I J I I I I 4 I I r 1 J M I N x I l Q 59 l i Cx Q I at ul x I S em 1 T 9 J V I r K I l w I A J QL r Z y Q i vusw A K5 BRAKE PIPE I DISTRIBUTION AND JN SWITCH ASSEMBLY 3 i Fig 2 Br I e Pipe Distribution end Switch Assembly A new brake pipe distribution and switch assembly is the brake alarm indicator light on the instrument panel mounted near the main cylinder The front and rear hy In the event of fluid loss in either the front or rear brake draulic brake lines are routed from the main cylinder system the indicator on the instrument panel will illu through the switch assembly to the front and rear brakes minate red The indicator will also be illuminated when as shown in Figure 2 The switch is wired electrically to the parking brake is applied In any service operation it is extremely important that assembly near the main cylinder detects the loss of absolute cleanliness be observed Any foreign matter in pressure and illuminates the brake alarm indicator light the hydraulic system will tend to clog the lines ruin the on the instrument panel The pressure loss is felt at the rubber cups of the main and wheel cylinders and cause brake pedal by an apparent lack of brakes for most of the inefficient operation or even failure of the braking sys brake travel and then when the failed chamber is bot tem Dirt or grease on a brake lining may cause that tomed the pedal will harden If a vehicle displays these brake to grab first on brake application and fade out on symptoms it is a good indication that one of the systems heavy brake application contains air or has failed and it is necessary to bleed The split system consists basically of two separate or repair the brakes brake systems When a failure is encountered on either the other is adequate to stop the vehicle If one system is not functioning it is normal for the brake pedal lash and HYDRAULIC BRAKE FLUID pedal effort to substantially increase This occurs be Use GM Hydraulic Brake Fluid Supreme No 11 or cause of the design of the master cylinder which incor equivalent when servicing brakes This brake fluid is porates an actuating piston for each system When the satisfactory for any climate and has all the qualities 1 I SyStGm loses fluid and takes in the 311 its piston necessary for proper operation such as 3 high boiling will bottom against the front piston When the front sys point to prevent vapor lock and the ability to remain tem loses fluid its piston will bottom on the end of the fluid at low temperatures main cylinder body A pressure differential causes an In the event that improper fluid has entered the sys uneven hydraulic pressure balance between the front tem it will be necessary to service the system as and rear systems The brake pipe distribution and switch follows CORVMR SHOP MANUAL SUPPLEMENT